IRIS Movie of the Day
At least once a week a movie of the Sun taken by NASA's Interface Region Imaging Spectrograph (IRIS) is posted by one of the scientists operating the instrument.
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15 Nov 2021
Two merging sunspots and s-shaped flares
In AR12880, the two leading sunspots are merging. As this occurs the plasma is heated and brightenings are generated in the middle of the merging in a s-shaped structure.